This is the 95th most frequent French word.
nationale
The French word "nationale" means "national" in English.
Here, 'nationale' serves as an adjective agreeing in gender with the feminine noun 'fête', meaning "national".
La fête nationale en France est célébrée le 14 juillet.
The national holiday in France is celebrated on July 14th.
The term 'nationale' modifies 'Bibliothèque', indicating that the library pertains to the nation as a whole.
La Bibliothèque nationale de France conserve des livres anciens.
The National Library of France preserves ancient books.
In this example, 'nationale' describes 'équipe' to specify that it represents the entire nation in the sport.